. The Bell System technical journal . Fig. 6 for the experiments, and altho not the final form contains featureswhich are of interest in that they illustrate well the technique in-volved in combined wire and radio operation. The four vertical rows of jacks correspond to the four two-wayradio channels. At the top of each row will be seen the dials forcontrolling amplification. On the apron are telegraph keys, telephonekeys, and operating cords. The cord circuits, by being plugged intothe jacks, interconnect any one of the New York toll circuits with 154 BELL SYSTEM TECHNICAL JOURNAL &a fi CO h
. The Bell System technical journal . Fig. 6 for the experiments, and altho not the final form contains featureswhich are of interest in that they illustrate well the technique in-volved in combined wire and radio operation. The four vertical rows of jacks correspond to the four two-wayradio channels. At the top of each row will be seen the dials forcontrolling amplification. On the apron are telegraph keys, telephonekeys, and operating cords. The cord circuits, by being plugged intothe jacks, interconnect any one of the New York toll circuits with 154 BELL SYSTEM TECHNICAL JOURNAL &a fi CO h D oo o z DC u Q. o zo I CO oa< Q Z< _l. EXTENSION OF THE TELEPHONE SYSTEM TO SHIPS 155 any one of the four radio circuits. The cord circuits contain theswitching keys seen in front, by means of which the radio stationoperator is enabled to split the circuit and talk either way, connectthe circuit thru and bridge on it and talk or monitor. This cord
Size: 891px × 2803px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
